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authorJan Kara <jack@suse.cz>2016-12-22 12:15:20 +0300
committerPaul Moore <paul@paul-moore.com>2016-12-24 00:40:32 +0300
commite3ba730702af370563f66cb610b71aa0ca67955e (patch)
tree6a7dd8a17c9fde8851366f785faa4d9ce6462fe2 /fs
parent533c7b69c764ad5febb3e716899f43a75564fcab (diff)
downloadlinux-e3ba730702af370563f66cb610b71aa0ca67955e.tar.xz
fsnotify: Remove fsnotify_duplicate_mark()
There are only two calls sites of fsnotify_duplicate_mark(). Those are in kernel/audit_tree.c and both are bogus. Vfsmount pointer is unused for audit tree, inode pointer and group gets set in fsnotify_add_mark_locked() later anyway, mask and free_mark are already set in alloc_chunk(). In fact, calling fsnotify_duplicate_mark() is actively harmful because following fsnotify_add_mark_locked() will leak group reference by overwriting the group pointer. So just remove the two calls to fsnotify_duplicate_mark() and the function. Signed-off-by: Jan Kara <jack@suse.cz> [PM: line wrapping to fit in 80 chars] Signed-off-by: Paul Moore <paul@paul-moore.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/notify/mark.c12
1 files changed, 0 insertions, 12 deletions
diff --git a/fs/notify/mark.c b/fs/notify/mark.c
index d3fea0bd89e2..6043306e8e21 100644
--- a/fs/notify/mark.c
+++ b/fs/notify/mark.c
@@ -510,18 +510,6 @@ void fsnotify_detach_group_marks(struct fsnotify_group *group)
}
}
-void fsnotify_duplicate_mark(struct fsnotify_mark *new, struct fsnotify_mark *old)
-{
- assert_spin_locked(&old->lock);
- new->inode = old->inode;
- new->mnt = old->mnt;
- if (old->group)
- fsnotify_get_group(old->group);
- new->group = old->group;
- new->mask = old->mask;
- new->free_mark = old->free_mark;
-}
-
/*
* Nothing fancy, just initialize lists and locks and counters.
*/